package cn.edu.sdjzu.xg2121.controller;

import cn.edu.sdjzu.xg2121.domain.Department;
import cn.edu.sdjzu.xg2121.exception.BysjException;
import cn.edu.sdjzu.xg2121.service.DepartmentService;
import cn.edu.sdjzu.xg2121.util.JSONUtil;
import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.SQLException;
@WebServlet("/departmentUpdate.ctl")
public class DepartmentUpdateCtl extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //创建JSON对象message_jsonObj，以便往前端响应信息
        JSONObject message_jsonObj = new JSONObject();
        //设置响应字符编码为UTF-8
        response.setContentType("application/json;charset=UTF-8");
        //将request body转换为JSON字串
        String req_jsonStr = JSONUtil.getJSON(request);
        //将request body解析为JSONObject对象，可能含有分页信息、查询条件
        JSONObject req_jsonObj = JSON.parseObject(req_jsonStr);
        //如果请求body为空
        if (req_jsonObj == null) {
            message_jsonObj.put("message", "未收到请求信息!");
            response.getWriter().println(message_jsonObj);
            return;
        }
        try {
            Department department = JSON.parseObject(req_jsonStr,Department.class);
            DepartmentService.getInstance().update(department);
            response.getWriter().println("修改成功");
        }catch (BysjException e){
            message_jsonObj.put("message", "前端异常");
            response.getWriter().println(message_jsonObj);
            e.printStackTrace();
        }
        catch (SQLException e) {
            message_jsonObj.put("message", "数据库操作异常");
            response.getWriter().println(message_jsonObj);
            e.printStackTrace();
        } catch (Exception e) {
            message_jsonObj.put("message", "网络异常");
            response.getWriter().println(message_jsonObj);
            e.printStackTrace();
        }
    }
}
